JPH0613897Y2 - 水中保守点検装置による坑口装置カバー開閉装置 - Google Patents
水中保守点検装置による坑口装置カバー開閉装置Info
- Publication number
- JPH0613897Y2 JPH0613897Y2 JP2191288U JP2191288U JPH0613897Y2 JP H0613897 Y2 JPH0613897 Y2 JP H0613897Y2 JP 2191288 U JP2191288 U JP 2191288U JP 2191288 U JP2191288 U JP 2191288U JP H0613897 Y2 JPH0613897 Y2 JP H0613897Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- wellhead
- body frame
- guide pin
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007689 inspection Methods 0.000 title claims description 24
- 238000012423 maintenance Methods 0.000 title claims description 24
- 238000010586 diagram Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2191288U JPH0613897Y2 (ja) | 1988-02-23 | 1988-02-23 | 水中保守点検装置による坑口装置カバー開閉装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2191288U JPH0613897Y2 (ja) | 1988-02-23 | 1988-02-23 | 水中保守点検装置による坑口装置カバー開閉装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01136585U JPH01136585U (enrdf_load_stackoverflow) | 1989-09-19 |
JPH0613897Y2 true JPH0613897Y2 (ja) | 1994-04-13 |
Family
ID=31239560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2191288U Expired - Lifetime JPH0613897Y2 (ja) | 1988-02-23 | 1988-02-23 | 水中保守点検装置による坑口装置カバー開閉装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0613897Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-02-23 JP JP2191288U patent/JPH0613897Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01136585U (enrdf_load_stackoverflow) | 1989-09-19 |
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